UCMDB Tip: Advantages and disadvantages of the UD Agent-less and Agent-Based Discovery
Recently we had a lot of questions regarding benefits of UD Agent-less vs Agent-based discovery. Here is a quick summary of the advantages and disadvatages of the UD Agent-less vs Agent-Based Discovery.
UD allows to choose the best method of discovery per the specific needs and constraints of each management zone.
Agent-less Discovery has the following advantages:
- No need to deploy/maintain agent per server
- No continued presence on discovered device (minimal footprint)
- Leverages available access points (protocols) to get desired information
Note*: Not always Operating system credentials are available. Often security policies force credentials to be changed on a regular basis. Also, protocols like NTCMD require a lot of prerequisites (specific system configuration)
Agent-based Discovery provides the following advantages:
- Overcome security barriers
- Maintenance of user credentials is challenging
- Deeper insight into computer information (e.g. software utilization)
- Enables agent-initiated data reporting (“Call Home”)
Note*: Not everything can be done via the agent. The agent can only act as a replacement/alternative to shell protocols. So only those discovery jobs that work through shell protocols can potentially run through the agent.
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